| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_caefb1d74f5030779c6ede6ffcf8abdd
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_534c6a076a2a1860f004d09bd3f36d8c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cc5bce3ff93b90c7246573c773f98b20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_16b9a136fb6a114d1b63319f63364941
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_d691f8e9f72a85ba2c82fe766cd55e67 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-587 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0569
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-054 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-587 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-054
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0569 |
| filingDate |
2010-03-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2017-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64c05070816886810c6b540551c05408
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ea5d2af9fc762f6cc632654135954e47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8239a77f40a794db672a7b01c05b07fb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dff789c87f4d019b6ea84467b58a1a9a |
| publicationDate |
2017-01-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-9559381-B2 |
| titleOfInvention |
Sodium ion secondary battery |
| abstract |
Disclosed is a sodium-ion secondary battery having excellent charge and discharge efficiencies as well as excellent charge and discharge characteristics, wherein charging and discharging can be repeated without causing problems such as deterioration in battery performance. Specifically disclosed is a sodium ion secondary battery which is provided with a positive electrode, a negative electrode having a negative electrode active material, and a nonaqueous electrolyte solution containing a nonaqueous solvent. The nonaqueous solvent is substantially composed of a saturated cyclic carbonate (excluding the use of ethylene carbonate by itself), or a mixed solvent of a saturated cyclic carbonate and a chain carbonate, and a hard carbon is used as the negative electrode active material. It is preferable that the nonaqueous solvent used for the sodium-ion secondary battery is substantially composed of propylene carbonate, a mixed solvent of ethylene carbonate and diethyl carbonate, or a mixed solvent of ethylene carbonate and propylene carbonate. |
| priorityDate |
2009-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |